Lock



Aug., 2s, 1923'. 1,466.489

A H. F. STARRETT LOCK Filed Jan. 5. 1921 tion the latch in the locking Patented Aug. 28, 1923.

intense .Uhli' STATES @Ahiiif iiil.

ENRY F. STARRETT, OF' CHICAGO, ILLINOIS, ASSIGNOR TO STRRETT MFG. 00:, OF

CHICAGQILLINOIS, A CORPORATION OF :[LLLN'OIS.rv 1

LOCK.

Applicationv filed January 3, 1921. Serial No. 434,411.

To all whom it may concern.:

.Be it known that I, HENRY F. STARRETT, a citizen of the United States, residing at Chicago, in the county of Cook and State of 5 Illinois, have invented new and useful m-.

. provements in a Lock, of which the following` is a full, clear, concise, .and exact de-l scription, reference being had to the accompanying drawing, specification. Y

This invention relates to a lock and more particularly to a combined lock and stop especially adaptable for use with doors provided with cabinets adapted to receive electric panel-boards. These cabinets are usually equipped with a door which permitslaccess tothe fuses positioned inside the'cabinet, the door beingprovided with a lock to prevent access tothe fuses, except to those authorized to make replacements.

It is the purpose of this invention to produce a combined lock and stop which can be cheaply manufactured, easily installed, and which is simple and efficient in its operation.4

@ne of the objects of the invention resides in the production of an improved form of latch which will cooperate with the locking mechanism, so as to automatically posi position when said latch is rotated in the locking direction until it strikes the enclosure of said lockin mechanism.

vforming a part of this 4or the purpose of description, the in vention is illustrated in the accompanying drawings in which- Fig. 1 is a plan view of a portion of the door and cabinet showing the combined locking mechanism and latch in Yposition on the door; v

Fig. 2 is a transverse section taken on the plane indicated by the line 2 2 of Fig. l; and

Fig. 3 is a showing the tion.

As illustrated in the drawing, the locking mechanism 4 is secured to the door 5 in any latch in the unlocked posisuitable manner, preferably by rivets suchv as 6. Any desired form of commercial locking mechanism may be used in which the locking bolt 7 is enclosed in a lock-housing S. The bolt 7 is controlled by any suitable means enclosed within the housing 8, which, in cooperation with a key, permits the pro- .1 Y plan view, simiiar to Fig. 1,

jec'tion of the 'bolt 7 froml the housing, as

shown in Fig. l, or the witlidrawal ofthe bolt 7 from the locking position, shown inFig. 1,to a'position in thel housing, as shown in Fig. 3. The locking mechanism enclosed within'tlie housing is positioned on tlie door so that the medial line of the lock will .pass substantially through the center of rotation of the latch l0.

VThe latch comprises the lock-ing member 1l Vand .the two rearwardly projecting prongs 12 and 13, the prongs 12 and 13 and the locking member 11 being slightly elevated above the horizontal plane ofthe remainder of the latch member 10,'as clearly illustrated in Fig. 2. Due to this elevation of the locking member 11 whenthe latch Y is turned to the locking position, asV illustrated in Figs. 1 and 2, the locking member will ride in back of the strike-plate 14A secured to the cabinet enclosure l15, which strike-plate 4iinctions to properly` position the door 5 so that its front surface will rest Yflush with the front surface of the top of the cabinet enclosure 15. The rearwardly projecting prong 12 serves as a stop to automatically limit the turning of the latch in its locking positionwhen the latch is turned from the unlocked to the locked position.

When the latch is thus turned, due to the positions in which the locking mechrelative anism 4 and the latch 10 are placed on the door, the prong l2 will hit the housing of the locking member 4, so as to arrest the turning movement of the latch. When the locking member Yof the latch is in the locking position, as. shown in Figs. 1 and 2,V

the prongs 12 and 13 are so positioned with respect to the locking bolt 7.of the locking y' i door by means of which the latch is controlled. rl`he screw 16 also extends through a spring washer 18 which serves to rigidly hold the washer against the head of thel screw 16 and whereby the latch 10 will i-o- -tate with the handle 17.

It will now be evident from the foregoing description that due to the relative .location prongs when the bolt' is y proof the latch l0 and the locking mechanism l and the construction of the latch lO, including the prongs 12 and 13, that the rotation of the latch to the locking position will be automatically Varrested by the prong l2, and that when the latch is thus arrested in yits rotary movement the prongs l2 and 13 ivill be automatically positioned so that they will cooperate with the locking bolt 7 to lock the latch inrits locking position. v

The housing of the locking mechanism d, diie to its location `ivith' respect to the'rotatable latch 10, therefore, serves the dual function of a'stop for arresting the movement of the latch in its locking position 'and `tor locking the latch in this position after it has been thus located. The locking' mechanism and latch, when positioned as hereinbetere described with the latch equipped with the combination lock and stopping prong, consequently provide a simple and efficient means for securing a latch lockingv combination. n

Obviously, the invention is not limited to the specific einoodimentthereot herein illustrated and described, but is capable ot other Variations and applications Within the spirit and scope ot the inventionas set forth in the 'following claims. y

What l claim as neii7 rand desire to secure as Letters latent is:

1. ln a device of the character described, in combination, a locking' mechanism coml operative action ot in the locking position, and both of saidV prongs cooperating with said locking bolt to lock said latch.

2. ln a device of the character described, in combination, a locking mechanism positioned in a housingseciired to a door, aA rotatable latch secured to said door, lock position and receiiingf4 means integrally secured to said latch, said latchl and'l'o-eking mechanism being so positioned relative to one another tovcause said latch to be aiitoniaticallyV positioned iii the lockingl position by the cosaid means Aand said locking mechanism.

3. ln a device of the character in combination, locking mechanism positioned in a housing secured to a door, a rotatable latch secured to said door, project-l ing prongsintegral with said latch, said latch and locking'meclianism being sc positioned relative to one another to cause said latch to be automatically positioned in the said lockingposition-by the cooperative action ot one of said projecting prongs and said locking mechanism.

described, l

ln witness whereof, l have herei'intohsiibscribed my name.

HENRY F. STARRETT. 

